Mr.Ellington has 32 students in his class, The ratio of girls to boys is 3:5. How many girls are in the class.

Question

This is 6th grade math. On ratio's, somebody help.

Answer 1

Suppose there are x girls and y boys in a class.

Knowing from x: y = 3: 5 x = 3 / 5y.

Because x + y = 32

So 3 / 5y + y = 32, y = 32 * 5/8 = 20.

x = 32-y = 32-20 = 12

There are 12 girls

Answer 2

Class ratio of girls to boys is 3:5

So there are 3 girls and 5 boys in 8 students

If there are 32 students, then 3/(3+5) * 32 = 12 girls, and 5/(3+5) * 32 = 20 boys